Max katzman



Sept. 27, 1932. KATZMAN 1,879,297

ELECTRIC VAPORIZER Filed May 1, 1929 IIIIIIIIII .H

nun-Inn BY I MYM ATT RNEYS Patented Sept. 27, 1932 UNITED STATES max n'rzmn, or once, nEw Yoax ELECTRIC vAronIzEn Application filed May 1,

This invention relates to an electric vapor izer of the class set forth in my reissue application SerialNo. 220,617, filed September 19, 1927, original Patent No. 1,628,784, and also my other pending applications Serial No. 244,217, filed January 3, 1928; Serial No. 279,805, filedMay 22, 1928, and Serial No. 293,153, filed July 1c, 1928.

The primary object of these devices is .to provide a safe and convenient means for electrically vaporizing medicinal and deodorizing liquids and liberating the vapor into the room in which the device is located for hygienic purposes, but obviously is adapted for many other uses, such, forexample, as humidors for supplying extra moisture to the air in the room.

The present invention, however, relates more particularly to the construction of the electrodes of,the heater and to the manner of mounting the same upon the lid or cover of the receptacle, the'object being to prolong the life and to greatly increase the heating efficiency of the electrodes and at the same a time to reduce the liability of short circuiting deposits upon and between the electrodes by allowing any foreign matter which may accumulate in and around the electrodes to drop by its own weight or by the ebullition of the so liquid in the receptacle to the bottom of the container away from the electrodes.

Another object is to hold the electrodes in spaced relation to the lid or cover of the receptacle by means of a spacing block of insulating material having means for hold ing the adjacent faces of the electrodes in parallel spaced relation to form an intervening liquid-receiving space through which the electric current is adapted to pass for heating the liquid.

In the drawing: I

Figure 1 is "a side elevation of an electric vaporizer embodying the various features of my invention.

Figures 2 and 3 are enlarged vertical sectional views taken respectively in'the planes of lines 22, Figure 1, and 3-3, Figure 2.

As illustrated, this device comprises a main supporting frame -1, a receptacle 2 hav- 5o ing a removable lidor. cover 3, an electric REISSUED heater 4 and'an electric plug or coupler 5. The frame 1 comprises a circular base 6 and a resilient arm 7 extending upwardly along the outside of the receptacle 2 and having its lower end secured at 8 to the base 6 and its upper end extended above the adjacent portion of the lid 3 and secured by screws 9 or equivalent fastening means to the electric plug or coupler 5.

The base 6 is preferably made of sheet metal and is provided in its upper side with a relatively shallow circular recess 10 in which the lower end of the receptacle is removably seated. The receptacle 2 is preferably made of transparent glass or other suitable insulating material and is adapted to receive the liquid to be vaporized, said receptacle being mainly cylindrical for convenience of handling and cleansing.

The lid or cover 3 preferably comprises a metallic rim or rin section 11 and an insulating section 12 o porcelain or other suitable lnsulating material. The rim section 3 is preferably angular in cross section to form vertical and horizontal flanges 13 and 14, the flange 13 being preferably threaded to engage corresponding peripheral threads on the upper end of the receptacle 2 while the horizontal flange .14 serves as a means for holding the insulating section 12 inoperative position on the upper end of the receptacle.

That is, the insulating section 12 is provided with an annular flange 15 which is adapted to be interposed between the horizontal flange 14 of the rim 11 and end face of the receptacle 2 with a suitable interposed packing 16 to reduce the liability of leakage ofthe liquid or vapor from the bottle through the adjacent joint.

The insulating section 12 is also provided with an upwardly and laterally extending discharge nozzle 17 having an outlet passage 18 therethrough for the discharge of the vaporized fluid into the room in which the device is located, said outlet being preferably tapered toward its outer end to cause the vapor to be discharged with increased force some distance therefrom into the room.

The heater 4 is suspended from the insulating section 12 of the lid 3 into the interior 1929. Serial No. 359,551.

of the receptacle 2 for submergence into the liquid to be vaporized and comprises, in this instance, a pair of similar rectangular electrodes 19 preferably of steel or other suitable metal and a pair of conductor rods 20 having their upper ends extended through corresponding apertures in the insulating section 12 and provided with external terminal extensions 20 adapted to be engaged'by sock eted terminals 5 of the plug or cover 5.

These terminal rods are provided at their junctions with the terminals 20' with shoulders 21 normally seated in corresponding recesses in the upper face of the insulating section 12 to hold the rods 20 against downward movement.

These conductor rods 20 are extended downwardly from the lid or cap 3 through corresponding openings in a spacing block 22 of insulating material and having their lower ends threaded and engaged with correspondin gly threaded sockets 19' in the electrodes 19 which obviously permits both electrodes to be reversed about the axes of their respective loads 20 to presentdifi'erent faces thereof to the intervening gap when said faces become impaired.

This insulating block 20 is common to both of the electrodes 19 and extends from the underside of the insulating section 12 to the upper faces of the electrodes to hold the latter in proximity to but slightly above the bottom of the receptacle 2.

The lower end of the insulating block 22 is provided with a relatively narrow rib 23 at right angles to the plane of the conductor rods 20 and adapted to extend a relatively short distance below the upper faces of the electrodes 19 for holding them in uniformly spaced parallel relation for the reception of the liquid to be heated.

The electric plug or coupler 5 comprises the terminal sockets 5 and an insulatinghousing 24 therefrom. The terminal sockets 5' are connected by a suitable cable or conductor 25 to any available source of current supply for the heater electrode 19.

The insulating block 22 is preferably made solid or in one piece of porcelain or other heat-refracting material capable of withstanding the relatively high temperature and moisture within the container 2 without deterioration.

The all-metal electrodes 19 constitute elec tric conductors of comparatively low electrical resistance so that the electric current which is supplied thereto thrbugh the conductors 20 when the terminals 20' are engaged by the electric plug 5 may readily pass from one electrode to the other through the intervening body of liquid where the (a greatest ebullition takes place the heat from the electrodes is transmitted to the surrounding liquid throughout the areas thereof to further expedite the conversion of the liquid in the vapor.

One of the important advantages in making the electrodes of metal is that their adjacent faces may be made comparatively smooth and owing to the fact that the space between the electrodes is open at the bottom and at opposite sides it is evident that any foreign matter which may tend to accumulate therein may readily be precipitated therefrom to the bottom of the receptacle. Furthermore, the agitation and circulatlon of the liquid produced by ebullition thereof between the electrodes serves to clean the adjacent faces thereof from any foreign matter thereby increasing the efficiency of the 1. In an electric vaporizer, a receptacle.

having a removable lid provided with a section of insulating material, an electric heater having electric conductors suspended from said insulating section of the lid, said conductors having their upper ends provided with outwardly projecting terminals adapted to receive an electric plug, and metal electrodes secured to the lower ends of the conductors in transversely spaced relation, the spaces between the electrodes being open at the bottom and at "oppositesides and an insulating block interposed between the electrodes and underside of the lid and having its lower end provided with a rib projecting a relatively short distance into the space between the electrodes for holding the latter againstturning movement.

2. In an electric vaporizer, a receptacle having a'removable lid and an electric heater suspended from said lid within the receptacle and comprising a pair of rectangular electrodes having threaded sockets and threaded conductors engaged in said sockets and extending through openings in the lid, said conductors being provided with external terminals adapted to be engaged by an electric plug, and a socketed insulating block of heat-refracting material interposed between the lower face of the lid and upper face of the electrodes and enclosing the adjacent portions of the conductors, said insulating block having its lowerend extended a relatively short distance between the electrodes for holding the latter against turning movement of their respective conductors.

3. In an electric vaporizer, a container for the material to be vaporized, an insulating block, a pair of electrodes abutting against the lower end of the block to form an inter vening space open at the bottom, and means supported from the top of the container and extending through said block for clamping the electrodes to the lower end thereof.

In witness whereof I have hereunto set my hand this 19 day of April, 1929.

MAX KATZMAN. 

